It was once the base for a series of domestic terror attacks.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

The world-record holder for the longest bridge stretching continuously over water.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

A building shaped like the Army Corps of Engineers logo, because why not?

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The United States Capitol's former columns still stand.

The oldest continuously operating fish market in the United States.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The only place for a truly presidential dram.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This abandoned horse racing track was an exercise in hubris from its inception.

Visitors to this public park will also find the ruins of an old western fort.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.